Port log4j-appserver changes from 2.x (#2163)

Author: vy

log4j-appserver/pom.xml

@@ -16,7 +16,9 @@
   ~ limitations under the License.
   -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
   <modelVersion>4.0.0</modelVersion>
+
   <parent>
     <groupId>org.apache.logging.log4j</groupId>
     <artifactId>log4j</artifactId>
@@ -30,7 +32,6 @@
   <description>Provide Log4j as the logging implementation for application servers</description>
 
   <properties>
-    <log4jParentDir>${basedir}/..</log4jParentDir>
 
     <!--
       ~ OSGi and JPMS options
@@ -69,5 +70,4 @@
       <artifactId>log4j-api</artifactId>
     </dependency>
   </dependencies>
-
 </project>

log4j-appserver/src/main/java/org/apache/logging/log4j/appserver/jetty/Log4j2Logger.java

@@ -71,7 +71,6 @@ public Log4j2Logger() {
     }
 
     public Log4j2Logger(final String name) {
-        super();
         this.name = name;
         this.logger = PrivateManager.getLogger(name);
     }